javax.xml.transform.SourceLocator Java Examples

/**
 * Tell the user of an error, and probably throw an
 * exception.
 *
 * @param xctxt The XPath runtime context.
 * @param sourceNode Not used.
 * @param msg An error msgkey that corresponds to one of the constants found
 *            in {@link com.sun.org.apache.xpath.internal.res.XPATHErrorResources}, which is
 *            a key for a format string.
 * @param args An array of arguments represented in the format string, which
 *             may be null.
 *
 * @throws TransformerException if the current ErrorListoner determines to
 *                              throw an exception.
 */
public void error(
        XPathContext xctxt, int sourceNode, String msg, Object[] args)
          throws javax.xml.transform.TransformerException
{

  String fmsg = XSLMessages.createXPATHMessage(msg, args);
  ErrorListener ehandler = xctxt.getErrorListener();

  if (null != ehandler)
  {
    ehandler.fatalError(new TransformerException(fmsg,
                            (SAXSourceLocator)xctxt.getSAXLocator()));
  }
  else
  {
    SourceLocator slocator = xctxt.getSAXLocator();
    System.out.println(fmsg + "; file " + slocator.getSystemId()
                       + "; line " + slocator.getLineNumber() + "; column "
                       + slocator.getColumnNumber());
  }
}
 

/** Retrieve the SourceLocator associated with a specific node.
 * This is only meaningful if the XalanProperties.SOURCE_LOCATION flag was
 * set True using setProperty; if it was never set, or was set false, we
 * will return null.
 *
 * (We _could_ return a locator with the document's base URI and bogus
 * line/column information. Trying that; see the else clause.)
 * */
public SourceLocator getSourceLocatorFor(int node)
{
  if (m_useSourceLocationProperty)
  {

    node = makeNodeIdentity(node);


    return new NodeLocator(null,
                           m_sourceSystemId.elementAt(node),
                           m_sourceLine.elementAt(node),
                           m_sourceColumn.elementAt(node));
  }
  else if(m_locator!=null)
  {
      return new NodeLocator(null,m_locator.getSystemId(),-1,-1);
  }
  else if(m_systemId!=null)
  {
      return new NodeLocator(null,m_systemId,-1,-1);
  }
  return null;
}
 

/**
 * Get the source tree from the a base URL and a URL string.
 *
 * @param base The base URI to use if the urlString is relative.
 * @param urlString An absolute or relative URL string.
 * @param locator The location of the caller, for diagnostic purposes.
 *
 * @return should be a non-null reference to the node identified by the
 * base and urlString.
 *
 * @throws TransformerException If the URL can not resolve to a node.
 */
public int getSourceTree(
        String base, String urlString, SourceLocator locator, XPathContext xctxt)
          throws TransformerException
{

  // System.out.println("getSourceTree");
  try
  {
    Source source = this.resolveURI(base, urlString, locator);

    // System.out.println("getSourceTree - base: "+base+", urlString: "+urlString+", source: "+source.getSystemId());
    return getSourceTree(source, locator, xctxt);
  }
  catch (IOException ioe)
  {
    throw new TransformerException(ioe.getMessage(), locator, ioe);
  }

  /* catch (TransformerException te)
   {
     throw new TransformerException(te.getMessage(), locator, te);
   }*/
}
 

/**
 * Tell the user of an error, and probably throw an
 * exception.
 *
 * @param xctxt The XPath runtime context.
 * @param sourceNode Not used.
 * @param msg An error msgkey that corresponds to one of the constants found
 *            in {@link com.sun.org.apache.xpath.internal.res.XPATHErrorResources}, which is
 *            a key for a format string.
 * @param args An array of arguments represented in the format string, which
 *             may be null.
 *
 * @throws TransformerException if the current ErrorListoner determines to
 *                              throw an exception.
 */
public void error(
        XPathContext xctxt, int sourceNode, String msg, Object[] args)
          throws javax.xml.transform.TransformerException
{

  String fmsg = XSLMessages.createXPATHMessage(msg, args);
  ErrorListener ehandler = xctxt.getErrorListener();

  if (null != ehandler)
  {
    ehandler.fatalError(new TransformerException(fmsg,
                            (SAXSourceLocator)xctxt.getSAXLocator()));
  }
  else
  {
    SourceLocator slocator = xctxt.getSAXLocator();
    System.out.println(fmsg + "; file " + slocator.getSystemId()
                       + "; line " + slocator.getLineNumber() + "; column "
                       + slocator.getColumnNumber());
  }
}
 

/**
 * Get the source tree from the input source.
 *
 * @param source The Source object that should identify the desired node.
 * @param locator The location of the caller, for diagnostic purposes.
 *
 * @return non-null reference to a node.
 *
 * @throws TransformerException if the Source argument can't be resolved to
 *         a node.
 */
public int getSourceTree(Source source, SourceLocator locator, XPathContext xctxt)
        throws TransformerException
{

  int n = getNode(source);

  if (DTM.NULL != n)
    return n;

  n = parseToNode(source, locator, xctxt);

  if (DTM.NULL != n)
    putDocumentInCache(n, source);

  return n;
}
 

/**
 * Get the source tree from the input source.
 *
 * @param source The Source object that should identify the desired node.
 * @param locator The location of the caller, for diagnostic purposes.
 *
 * @return non-null reference to a node.
 *
 * @throws TransformerException if the Source argument can't be resolved to
 *         a node.
 */
public int getSourceTree(Source source, SourceLocator locator, XPathContext xctxt)
        throws TransformerException
{

  int n = getNode(source);

  if (DTM.NULL != n)
    return n;

  n = parseToNode(source, locator, xctxt);

  if (DTM.NULL != n)
    putDocumentInCache(n, source);

  return n;
}
 

/**
 * <code>publicId</code> returns the public identifier of the node passed as
 * argument. If a node set is passed as argument, the public identifier of
 * the first node in the set is returned.
 *
 * Xalan does not currently record this value, and will return null.
 *
 * @param nodeList a <code>NodeList</code> value
 * @return a <code>String</code> value
 */
public static String publicId(NodeList nodeList)
{
  if (nodeList == null || nodeList.getLength() == 0)
    return null;

  Node node = nodeList.item(0);
  int nodeHandler = ((DTMNodeProxy)node).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)node).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getPublicId();
  else
    return null;
}
 

/**
 * <code>publicId</code> returns the public identifier of the node passed as
 * argument. If a node set is passed as argument, the public identifier of
 * the first node in the set is returned.
 *
 * Xalan does not currently record this value, and will return null.
 *
 * @param nodeList a <code>NodeList</code> value
 * @return a <code>String</code> value
 */
public static String publicId(NodeList nodeList)
{
  if (nodeList == null || nodeList.getLength() == 0)
    return null;

  Node node = nodeList.item(0);
  int nodeHandler = ((DTMNodeProxy)node).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)node).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getPublicId();
  else
    return null;
}
 

private static String buildErrorMessage(String resource, Exception cause) {
    StringBuilder msg = new StringBuilder("Error compiling XSL stylesheet ");
    msg.append(resource);

    if (cause instanceof TransformerException) {
        TransformerException tex = (TransformerException) cause;
        msg.append("\n").append(tex.getMessage());
        SourceLocator sl = tex.getLocator();
        if (sl != null) {
            msg.append(" (").append(sl.getSystemId()).append(") ");
            msg.append(" at line ").append(sl.getLineNumber());
            msg.append(" column ").append(sl.getColumnNumber());
        }
    }

    return msg.toString();
}
 

/** Retrieve the SourceLocator associated with a specific node.
 * This is only meaningful if the XalanProperties.SOURCE_LOCATION flag was
 * set True using setProperty; if it was never set, or was set false, we
 * will return null.
 *
 * (We _could_ return a locator with the document's base URI and bogus
 * line/column information. Trying that; see the else clause.)
 * */
public SourceLocator getSourceLocatorFor(int node)
{
  if (m_useSourceLocationProperty)
  {

    node = makeNodeIdentity(node);


    return new NodeLocator(null,
                           m_sourceSystemId.elementAt(node),
                           m_sourceLine.elementAt(node),
                           m_sourceColumn.elementAt(node));
  }
  else if(m_locator!=null)
  {
      return new NodeLocator(null,m_locator.getSystemId(),-1,-1);
  }
  else if(m_systemId!=null)
  {
      return new NodeLocator(null,m_systemId,-1,-1);
  }
  return null;
}
 

/**
 * <code>lineNumber</code> returns the line number of the node
 * passed as argument. If a node set is passed as argument, the line
 * number of the first node in the set is returned.
 *
 * NOTE: Xalan does not normally record location information for each node.
 * To obtain it, you must set the custom TrAX attribute
 * "http://xml.apache.org/xalan/features/source_location"
 * true in the TransformerFactory before generating the Transformer and executing
 * the stylesheet. Storage cost per node will be noticably increased in this mode.
 *
 * @param nodeList a <code>NodeList</code> value
 * @return an <code>int</code> value. This may be -1 to indicate that the
 * line number is not known.
 */
public static int lineNumber(NodeList nodeList)
{
  if (nodeList == null || nodeList.getLength() == 0)
    return -1;

  Node node = nodeList.item(0);
  int nodeHandler = ((DTMNodeProxy)node).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)node).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getLineNumber();
  else
    return -1;
}
 

/**
 * <code>publicId</code> returns the public identifier of the node passed as
 * argument. If a node set is passed as argument, the public identifier of
 * the first node in the set is returned.
 *
 * Xalan does not currently record this value, and will return null.
 *
 * @param nodeList a <code>NodeList</code> value
 * @return a <code>String</code> value
 */
public static String publicId(NodeList nodeList)
{
  if (nodeList == null || nodeList.getLength() == 0)
    return null;

  Node node = nodeList.item(0);
  int nodeHandler = ((DTMNodeProxy)node).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)node).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getPublicId();
  else
    return null;
}
 

/**
 * <code>systemId</code> returns the system id of the node passed as
 * argument. If a node set is passed as argument, the system id of
 * the first node in the set is returned.
 *
 * @param nodeList a <code>NodeList</code> value
 * @return a <code>String</code> value
 */
public static String systemId(NodeList nodeList)
{
  if (nodeList == null || nodeList.getLength() == 0)
    return null;

  Node node = nodeList.item(0);
  int nodeHandler = ((DTMNodeProxy)node).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)node).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getSystemId();
  else
    return null;
}
 

/**
 * <code>lineNumber</code> returns the line number of the node
 * passed as argument. If a node set is passed as argument, the line
 * number of the first node in the set is returned.
 *
 * NOTE: Xalan does not normally record location information for each node.
 * To obtain it, you must set the custom TrAX attribute
 * "http://xml.apache.org/xalan/features/source_location"
 * true in the TransformerFactory before generating the Transformer and executing
 * the stylesheet. Storage cost per node will be noticably increased in this mode.
 *
 * @param nodeList a <code>NodeList</code> value
 * @return an <code>int</code> value. This may be -1 to indicate that the
 * line number is not known.
 */
public static int lineNumber(NodeList nodeList)
{
  if (nodeList == null || nodeList.getLength() == 0)
    return -1;

  Node node = nodeList.item(0);
  int nodeHandler = ((DTMNodeProxy)node).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)node).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getLineNumber();
  else
    return -1;
}
 

/**
 * <code>systemId</code> returns the system id of the current
 * context node.
 *
 * @param context an <code>ExpressionContext</code> value
 * @return a <code>String</code> value
 */
public static String systemId(ExpressionContext context)
{
  Node contextNode = context.getContextNode();
  int nodeHandler = ((DTMNodeProxy)contextNode).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)contextNode).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getSystemId();
  else
    return null;
}
 

/**
 * Constructor SAXSourceLocator
 *
 *
 * @param locator Source locator
 */
public SAXSourceLocator(javax.xml.transform.SourceLocator locator)
{
  m_locator = null;
  this.setColumnNumber(locator.getColumnNumber());
  this.setLineNumber(locator.getLineNumber());
  this.setPublicId(locator.getPublicId());
  this.setSystemId(locator.getSystemId());
}
 

/**
 * <code>publicId</code> returns the public identifier of the current
 * context node.
 *
 * Xalan does not currently record this value, and will return null.
 *
 * @param context an <code>ExpressionContext</code> value
 * @return a <code>String</code> value
 */
public static String publicId(ExpressionContext context)
{
  Node contextNode = context.getContextNode();
  int nodeHandler = ((DTMNodeProxy)contextNode).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)contextNode).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getPublicId();
  else
    return null;
}
 

public static void ensureLocationSet(TransformerException exception)
{
  // SourceLocator locator = exception.getLocator();
  SourceLocator locator = null;
  Throwable cause = exception;

  // Try to find the locator closest to the cause.
  do
  {
    if(cause instanceof SAXParseException)
    {
      locator = new SAXSourceLocator((SAXParseException)cause);
    }
    else if (cause instanceof TransformerException)
    {
      SourceLocator causeLocator = ((TransformerException)cause).getLocator();
      if(null != causeLocator)
        locator = causeLocator;
    }

    if(cause instanceof TransformerException)
      cause = ((TransformerException)cause).getCause();
    else if(cause instanceof SAXException)
      cause = ((SAXException)cause).getException();
    else
      cause = null;
  }
  while(null != cause);

  exception.setLocator(locator);
}
 

/**
 * <code>publicId</code> returns the public identifier of the current
 * context node.
 *
 * Xalan does not currently record this value, and will return null.
 *
 * @param context an <code>ExpressionContext</code> value
 * @return a <code>String</code> value
 */
public static String publicId(ExpressionContext context)
{
  Node contextNode = context.getContextNode();
  int nodeHandler = ((DTMNodeProxy)contextNode).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)contextNode).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getPublicId();
  else
    return null;
}
 

public static void ensureLocationSet(TransformerException exception)
{
  // SourceLocator locator = exception.getLocator();
  SourceLocator locator = null;
  Throwable cause = exception;

  // Try to find the locator closest to the cause.
  do
  {
    if(cause instanceof SAXParseException)
    {
      locator = new SAXSourceLocator((SAXParseException)cause);
    }
    else if (cause instanceof TransformerException)
    {
      SourceLocator causeLocator = ((TransformerException)cause).getLocator();
      if(null != causeLocator)
        locator = causeLocator;
    }

    if(cause instanceof TransformerException)
      cause = ((TransformerException)cause).getCause();
    else if(cause instanceof SAXException)
      cause = ((SAXException)cause).getException();
    else
      cause = null;
  }
  while(null != cause);

  exception.setLocator(locator);
}
 

/**
 * Constructor SAXSourceLocator
 *
 *
 * @param locator Source locator
 */
public SAXSourceLocator(javax.xml.transform.SourceLocator locator)
{
  m_locator = null;
  this.setColumnNumber(locator.getColumnNumber());
  this.setLineNumber(locator.getLineNumber());
  this.setPublicId(locator.getPublicId());
  this.setSystemId(locator.getSystemId());
}
 

/**
 * <code>systemId</code> returns the system id of the current
 * context node.
 *
 * @param context an <code>ExpressionContext</code> value
 * @return a <code>String</code> value
 */
public static String systemId(ExpressionContext context)
{
  Node contextNode = context.getContextNode();
  int nodeHandler = ((DTMNodeProxy)contextNode).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)contextNode).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getSystemId();
  else
    return null;
}
 

public static void ensureLocationSet(TransformerException exception)
{
  // SourceLocator locator = exception.getLocator();
  SourceLocator locator = null;
  Throwable cause = exception;

  // Try to find the locator closest to the cause.
  do
  {
    if(cause instanceof SAXParseException)
    {
      locator = new SAXSourceLocator((SAXParseException)cause);
    }
    else if (cause instanceof TransformerException)
    {
      SourceLocator causeLocator = ((TransformerException)cause).getLocator();
      if(null != causeLocator)
        locator = causeLocator;
    }

    if(cause instanceof TransformerException)
      cause = ((TransformerException)cause).getCause();
    else if(cause instanceof SAXException)
      cause = ((SAXException)cause).getException();
    else
      cause = null;
  }
  while(null != cause);

  exception.setLocator(locator);
}
 

/**
 * <code>systemId</code> returns the system id of the current
 * context node.
 *
 * @param context an <code>ExpressionContext</code> value
 * @return a <code>String</code> value
 */
public static String systemId(ExpressionContext context)
{
  Node contextNode = context.getContextNode();
  int nodeHandler = ((DTMNodeProxy)contextNode).getDTMNodeNumber();
  SourceLocator locator = ((DTMNodeProxy)contextNode).getDTM()
    .getSourceLocatorFor(nodeHandler);

  if (locator != null)
    return locator.getSystemId();
  else
    return null;
}
 

/**
 * Construct an XPath object.
 *
 * (Needs review -sc) This method initializes an XPathParser/
 * Compiler and compiles the expression.
 * @param exprString The XPath expression.
 * @param locator The location of the expression, may be null.
 * @param prefixResolver A prefix resolver to use to resolve prefixes to
 *                       namespace URIs.
 * @param type one of {@link #SELECT} or {@link #MATCH}.
 * @param errorListener The error listener, or null if default should be used.
 *
 * @throws javax.xml.transform.TransformerException if syntax or other error.
 */
public XPath(
        String exprString, SourceLocator locator,
        PrefixResolver prefixResolver, int type,
        ErrorListener errorListener, FunctionTable aTable)
          throws javax.xml.transform.TransformerException
{
  m_funcTable = aTable;
  if(null == errorListener)
    errorListener = new com.sun.org.apache.xml.internal.utils.DefaultErrorHandler();

  m_patternString = exprString;

  XPathParser parser = new XPathParser(errorListener, locator);
  Compiler compiler = new Compiler(errorListener, locator, m_funcTable);

  if (SELECT == type)
    parser.initXPath(compiler, exprString, prefixResolver);
  else if (MATCH == type)
    parser.initMatchPattern(compiler, exprString, prefixResolver);
  else
    throw new RuntimeException(XSLMessages.createXPATHMessage(
          XPATHErrorResources.ER_CANNOT_DEAL_XPATH_TYPE,
          new Object[]{Integer.toString(type)}));
          //"Can not deal with XPath type: " + type);

  // System.out.println("----------------");
  Expression expr = compiler.compile(0);

  // System.out.println("expr: "+expr);
  this.setExpression(expr);

  if((null != locator) && locator instanceof ExpressionNode)
  {
      expr.exprSetParent((ExpressionNode)locator);
  }

}
 

/**
 * Wrap an existing exception in a DTMException.
 *
 * @param message The error or warning message, or null to
 *                use the message from the embedded exception.
 * @param locator The locator object for the error or warning.
 * @param e Any exception
 */
public DTMException(String message, SourceLocator locator,
                            Throwable e) {

    super(message);

    this.containedException = e;
    this.locator            = locator;
}
 

/**
 * Try to create a DOM source tree from the input source.
 *
 * @param source The Source object that identifies the source node.
 * @param locator The location of the caller, for diagnostic purposes.
 *
 * @return non-null reference to node identified by the source argument.
 *
 * @throws TransformerException if the source argument can not be resolved
 *         to a source node.
 */
public int parseToNode(Source source, SourceLocator locator, XPathContext xctxt)
        throws TransformerException
{

  try
  {
    Object xowner = xctxt.getOwnerObject();
    DTM dtm;
    if(null != xowner && xowner instanceof com.sun.org.apache.xml.internal.dtm.DTMWSFilter)
    {
      dtm = xctxt.getDTM(source, false,
                        (com.sun.org.apache.xml.internal.dtm.DTMWSFilter)xowner, false, true);
    }
    else
    {
      dtm = xctxt.getDTM(source, false, null, false, true);
    }
    return dtm.getDocument();
  }
  catch (Exception e)
  {
    //e.printStackTrace();
    throw new TransformerException(e.getMessage(), locator, e);
  }

}
 

/**
 * Construct an XPath object.
 *
 * (Needs review -sc) This method initializes an XPathParser/
 * Compiler and compiles the expression.
 * @param exprString The XPath expression.
 * @param locator The location of the expression, may be null.
 * @param prefixResolver A prefix resolver to use to resolve prefixes to
 *                       namespace URIs.
 * @param type one of {@link #SELECT} or {@link #MATCH}.
 * @param errorListener The error listener, or null if default should be used.
 *
 * @throws javax.xml.transform.TransformerException if syntax or other error.
 */
public XPath(
        String exprString, SourceLocator locator, PrefixResolver prefixResolver, int type,
        ErrorListener errorListener)
          throws javax.xml.transform.TransformerException
{
  initFunctionTable();
  if(null == errorListener)
    errorListener = new com.sun.org.apache.xml.internal.utils.DefaultErrorHandler();

  m_patternString = exprString;

  XPathParser parser = new XPathParser(errorListener, locator);
  Compiler compiler = new Compiler(errorListener, locator, m_funcTable);

  if (SELECT == type)
    parser.initXPath(compiler, exprString, prefixResolver);
  else if (MATCH == type)
    parser.initMatchPattern(compiler, exprString, prefixResolver);
  else
    throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_CANNOT_DEAL_XPATH_TYPE, new Object[]{Integer.toString(type)})); //"Can not deal with XPath type: " + type);

  // System.out.println("----------------");
  Expression expr = compiler.compile(0);

  // System.out.println("expr: "+expr);
  this.setExpression(expr);

  if((null != locator) && locator instanceof ExpressionNode)
  {
      expr.exprSetParent((ExpressionNode)locator);
  }

}
 

private static void printLocation(PrintWriter diagnosticsWriter, Throwable throwable) {
    try {
        Class<?> errorHandler =
                Class.forName("com.sun.org.apache.xml.internal.utils.DefaultErrorHandler");
        Method m = errorHandler.getMethod("printLocation", PrintWriter.class, Throwable.class);
        m.invoke(null, diagnosticsWriter, throwable);
    } catch (Throwable t) {
        SourceLocator locator = null;
        Throwable cause = throwable;

        // Try to find the locator closest to the cause.
        do {
            if (cause instanceof TransformerException) {
                SourceLocator causeLocator = ((TransformerException) cause).getLocator();
                if (null != causeLocator) {
                    locator = causeLocator;
                }
                cause = ((TransformerException) cause).getCause();
            } else if (cause instanceof SAXException) {
                cause = ((SAXException) cause).getException();
            } else {
                cause = cause.getCause();
            }
        } while (null != cause);

        if (null != locator) {
            // m_pw.println("Parser fatal error: "+exception.getMessage());
            String id = (null != locator.getPublicId())
                    ? locator.getPublicId()
                    : (null != locator.getSystemId())
                            ? locator.getSystemId() : "SystemId Unknown"; //"SystemId Unknown";

            diagnosticsWriter.print(id + "; " + "line: " + locator.getLineNumber()
                    + "; column: " + locator.getColumnNumber() + "; ");
        }
        diagnosticsWriter.print("(" + throwable + ": unknown location)");
    }
}
 

public static void ensureLocationSet(TransformerException exception)
{
  // SourceLocator locator = exception.getLocator();
  SourceLocator locator = null;
  Throwable cause = exception;

  // Try to find the locator closest to the cause.
  do
  {
    if(cause instanceof SAXParseException)
    {
      locator = new SAXSourceLocator((SAXParseException)cause);
    }
    else if (cause instanceof TransformerException)
    {
      SourceLocator causeLocator = ((TransformerException)cause).getLocator();
      if(null != causeLocator)
        locator = causeLocator;
    }

    if(cause instanceof TransformerException)
      cause = ((TransformerException)cause).getCause();
    else if(cause instanceof SAXException)
      cause = ((SAXException)cause).getException();
    else
      cause = null;
  }
  while(null != cause);

  exception.setLocator(locator);
}